Winding machine



Feb. 8, 1949. R. OPPENHEIM 2,461,231

WINDING MACHINE Filed Oct 5, 1945 Q 2 Sheets-Sheet l \NVENTOR aum MATTORNE Y Feb. 8, 1949. QPPENHElM 2,461,231

WINDING MACHINE Filed Oct. 5, 1945 2 Sheets-Sheet 2 INVENTOR 41. PHOPPf/Vf/f/M ATTORNEY Patented Feb. 8, 1949 UNITED STATES PATENT OFFICEApplication October 1945, Serial No. 620,444

13 Claims.

This invention relates to a machine for winding strands or hands ofrafiia or any other material that comes in short or uneven lengthstrands around strips of cloth, paper or belting or any other desirablefilling.

The principal object of this invention is to provide a machine tofacilitate the wrapping of strands or the like of any suitable materialhelically around strips of any suitable material and includes theprovision of mechanism for tucking in the rear ends of a strand underthe forward end of the next succeeding strand; mechanism forfacilitating the wrapping of strands of different widths upon strips ofdifferent widths, and means for controlling the pitch of the helicalwrapping and for controlling the thinness or thickness or amount ofoverlapping of the wrapping material.

Another object of the invention consists in the provision of means forfacilitating the use of winding shafts of different diameters, improvedmeans for holding the strip upon which the material is wound against thewinding shaft immediately ahead of the wrapping region and means forholding the last convolutions of the helical wrapping compacted againstthe shaft.

Other objects of the invention will appear from the followingdescription taken in connection with the drawings in which,

Figure 1 is a top plan view of a preferred embodiment of my invention;

Figure 2 is a transverse vertical view on line 22 of Figure 1;

Figure 3 is a transverse vertical view on line 3-3 of Figure 1;

Figure 4 is a vertical longitudinal view on line 4-4 of Figure 2;

Figure 5 is a transverse vertical view on line 55 of Figure 4;

Figure 6 shows in detail means for holding the last wound section of thestrand compacted on the winding shaft; and

Figure '7 shows a short section of the finished article produced on themachine.

In the preferred construction disclosed in the drawings the machinecomprises a frame F which includes a rectangular table ID on whichvarious elements of the machine are supported. This table is supportedon legs H at a convenient distance from the floor.

The motive power for the machine is preferably derived from a motor M,Figure 3, mounted on a shelf l2 located below the supporting table l0,and which drives a pulley I 3 over which passes a belt l4, see alsoFigure 1, passing over a pulley I5 mounted on the end of a shaft l5suitably supported in bearings H in a bracket E8 on the table If].

The shaft i6 is the main distributing shaft and is equipped with apulley 29 over which passes a belt 2| passing over a pulley 22 on ashort shaft 23 journalled in a bearing 24 in a bracket 25 supported onthe table if). The end of the short shaft 23 is provided with a collar26 which is equipped with a driving dog 2! which cooperates with adriving member 29 secured on a winding shaft 3%].

The shaft 23 is provided with a conical end 3| which projects into aconical recess in one end of the shaft 30. The other end of the shaft 39is provided with a conical recess to receive a similar conical end 3!ofa bearing 32 threaded in a mounting and dismounting of the shaft 3!!and 7 replacement of the shaft 39 by shafts of different diameters.

Also mounted on the distributing shaft l6, Figures 1 and 3, is avariable pitch pulley 35 over which passes abelt 35 passing over apulley 37 on a screw shaft 38 journalled at one end in a bear ing in abracket 39 supported on the table Hi and at its other end in a bearingin a bracket 40 supported 0n the table I I].

Secured in openings 42 and 43 in the brackets 39 and 4!! is a carriagesupporting and guiding rod 44.

A tension carriage disclosed at 48, Figure 2, is provided with a hub 49which slides and rocks on the rod 44. It is also provided. with a halfcylindrical threaded enlargement 5! to cooperate with the screw shaft 38for moving the carriage lengthwise of the winding shaft 31!.

The tension carriage is preferably of the shape disclosed in Figure 2and includes a horizontal portion 53 and a vertical end section 54 onthe upper end of which is mounted a sprin pressed tension mechanism 56of a well-known construction comprising discs sprin pressed together togrip the rama and hold it with the desired tension. The raffia or otherstrand is shown at 5'! as passing between the discs of the tensionmemher and as also passing'under anL-shaped hook member 58 pivoted onthe tension carriage at the base of the vertical member 54 to hold thestrand between the discs of the tension device.

For the purpose of facilitating the removal of the strand wrapped stripfrom the Winding shaft 30, the shaft 3i! employed with any width backingstrip is preferably of a circumferential dimension which is slightlyless than twice the Width i of the backing strip 8% which may be held onthe shaft by spring clips ii. M

For the purpose of increasing the effective circurnference of thewinding shaft on which the strand is wound, the shaft is provided with alongitudinal groove 63 to slidably receive an auxiliary or complementalshort shaft 6% which is preferably provided with a tapered end as shownin Figure 4, so as to facilitate its withdrawal from the lastconvolutions of the strands wound on strip during the wrappingoperation.

This auxiliary shaft is provided with an upstanding member 66, Figure 4,which is threaded to receive a screw threaded member El supported bymeans of a collar t3 and a manipulative head 65 in a lateral flange of aring H which encircles the winding shaft and which is moved along thelength of the shaft as the winding proceeds.

The ring 'li is provided with a pair of supporting rollers '53 and Mwhich bear against the strip to hold the some against the winding andauxiliary shafts at a point in advance of the region in which thewinding takes place. These rollers are supported on plungers i5 and 18which are threaded to recieve threaded adjustable members ll and 13, theconstruction in all respects being the same as that of the-means forpositioning and adjusting the auxiliary shaft 65'. The members 6?, "ifand it are adjusted to position and hold the rin ll concentric with theWinding shaft 3% and to accommodate various diameters of winding shaftsfor the purpose of wrapping strands on strips of different widths.

For the purpose of advancing the ring I I, the auxiliary shaft 641 andthe rollers 73 and T4, the left side face of the ring ll, Figure 4, isarranged in a plane extending normal to the axis of the winding shaft toprovide a track against which bear rollers 86 and ti supported onmembers 82 and 83 projecting upwardly from a' horizontal plate Sl t onthe right side of the horizontal portion 53 of the carriage 53. As thecarriage is advanced toward the right, Figure l, the rollers 8 and 6!press on the ring H and move the auxiliary shaft t l and rollers 73 andM toward the right.

In order to wrap successive strands about the winding shaft 393 withoutthe necessity of securing the ends of the strands together and also forthe purpose of controlling the accurate winding of the strands on theshaft a strand guiding member 5%, Figures 1 and 2, is provided Theguiding member 98 is pivoted on the horizontal portion 53 of thecarriage and is inclined toward and rests on the winding shaft as shownmore particularly in Figure 2. The construction is such that the guidingmember 90 presses against the left edge of the strand being wound andguides the strand onto the cylinder so as to wind and lay it a truehelical path.

Also pivo-tally supported on the horizontal portion 53 of the carriageis a hell crank 92, Figures 1 and 2, spring pressed clockwise by aspring 93, Figure 2, to urge a roller fi l carried by the upper end ofthe bell crank toward the rear face of the win cylind r Sil. This rolleris of such length is so positioned as shown in Figure 1, as to engagethe last wound and several other adjacent convolutions of the strand tohold the wrapping compact.

In the operation of wrapping when an end of a strand approaches thetensioning device, a

new strand is placed betweenthe strand that is at which the strand beingwound approaches the winding shaft, and then after the new strand hasbeen gripped and pressed against the windingshaft by the strand beingwound, the new strand is placed in the tensioning device. When the rearend of the first of these strips leaves the tensioning device, the guidebar which presses against the left edge of both strips moves the freedrear end of the first strip toward the right, and the roller 84 pressesagainst it and holds it in that position, and then as the Wrapping iscontinued with the second strip, the second strip huries the end of thefirst strip underneath it.

I claim: 7

1. A strand winding machine comprising a rotatable winding shaft and anauxiliary shaft keyed on the periphery of said winding shaft forrotation therewith and for longitudinal sliding movement thereon.

2. A winding shaft comprising complementary members, one of which isconstituted a main winding shaft and the other of which consists of ashort compieinentary shaft keyed on the peiery of said main shaft forlongitudinal sliding movement thereon and for rotation therewith, nor-tshalt being provided with a tapered rear end.

3. A winding shaft comprising a main shaft and a complementary shortshaft keyed on the periphery of said main shaft for l ngitudinal slidmovement icreon and for rotation therewith, means for rotating saidshafts and for sliding said complementary shaft longitudinally of saidmain shaft at a speed proportional to the speed of rotation of saidshafts.

a. A winding shaft comprising a main shaft a complementary short shaftkeyed on the periphery of said main shaft for longitudinal slidingmovement thereon and for rotation'there with, means for rotating saidshafts and for slid- ,ing said complementary shaft longitudinally ofsaid main shaft at any one of a plurality of speeds each proportional tothe speed of rotation of said shafts. I

5. A winding shaft comprising a main shaft a complementary short shaftkeyed on the periphery of said main shaft for longitudinal slidingmovement thereon and for rotation ther with, means for rotating saidshafts and for sliding said complementary shaft longitudinally of saidmain shaft at a speed proportional to the speed of rotation of saidshafts, and strand guid ing means movable with said complementary shaft.

6, A winding shaft comprising a main shaft and a complementary shortshaft keyed on the periphery of said main'shaft for longitudinal slidingmovement thereon and for rotation thercwith, means for rotating saidshafts, a carriage mounted for movement longitudinally of said shafts,means for moving said carriage longitudinally of said main shaft at aspeed proportional to the speed of rotation of said shafts, a strandguide supported on said carriage and means transmitting the movement ofsaid carriage to said complementary shaft.

'7. A winding shaft comprising a main shaft a complementary short shaftkeyed on the periphery of said main shaft for longitudinal slidingmovement thereon and for rotation therewith, means for rotating saidshafts, a carriage mounted for movement longitudinally of said shafts,means for moving said carriage longitudinally of said main shaft at aspeed proportional to the speed of rotation of said shafts, a strandguide supported on said carriage, means transmitting the movement ofsaid carriage to said complementatry shaft, said means comprising ringconnected to said complementary shaft and arranged concentrically withsaid shafts and means on said carriage for engaging and moving said ringlongitudinally of said shafts.

8. In combination with a winding shaft of an auxiliary short shaft keyedon the exterior of said winding shaft for rotation therewith and forlongitudinal sliding movement thereon, a ring surrounding said shafts,radially adjustable means connecting said ring to said short shaft, andmeans cooperating with said ring for moving said short shaftlongitudinally of said winding shaft as said winding shaft is rotated.

9. In combination with a winding shaft, of an auxiliary short shaftkeyed on the exterior of said winding shaft for rotation therewith andfor longitudinal sliding movement thereon, a ring surrounding saidshafts, radially adjustable means connecting said ring to said shortshaft, means cooperating with said ring for moving said short shaftlongitudinally of said Winding shaft as said winding shaft is rotated,and additional radially adjustable means carried by said ring andcooperating with said winding shaft to hold said auxiliary shaft insliding contact with said winding shaft.

10. In combination with a winding shaft, of an auxiliary short, shaftkeyed on the exterior of said winding shaft for rotation therewith andfor longitudinal sliding movement thereof, a ring surrounding saidshafts, radially adjustable means connecting said ring to said shortshaft, means cooperating with said ring for moving said short shaftlongitudinally of said winding shaft as said winding shaft is rotated,additional radially adjustable means carried by said ring andcooperating with said winding shaft to hold said auxiliary shaft insliding contact with said winding shaft, means for securing a backingstrip to said winding shaft, and rollers on said additional adjustablemeans adapted to bear on a backing strip attached to said winding shaft.

11. In combination with a winding shaft, of an auxiliary short shaftkeyed on the exterior of said winding shaft for rotation therewith andfor longitudinal sliding movement thereon, a ring surrounding saidshafts, radially adjustable means connecting said ring to said shortshaft, means cooperating with said ring for moving said short shaftlongitudinally of said winding shaft as said winding shaft is rotated,additional ad- 6 justable means carried by said ring and cooperatingwith said winding shaft to hold said ring concentric with said windingshaft, means for securing a backing strip to said winding shaft, rollerson said additional adjustable means adapted to bear on a backing stripattached to said winding shaft, means adjacent to the rear of saidrollers for guiding a strand to wind the same helically on said shaftsand roller means adjacent to said guiding means and to the rear thereofadapted to bear against the last wound convolutions of a strand as it isbeing wound on' said strip and shafts for holding said convolutionscompact.

12. In combination with a winding shaft, of a carriage movable along thelength of said shaft as the shaft is being rotated, strand tensioningmeans carried by said carriage, and strand guiding means carried by saidcarriage and bearing against the rear edge of a strand being wound onsaid shaft and operating as the rear end of the strand leaves saidtensioning device to move said end of the strand out of the helical pathof the Wound portion of the strand.

13. In combination with a winding shaft, of a carriage movable along thelength of the shaft as the shaft is being rotated, strand tensioningmeans carried by said carriage, strand guiding means carried by saidcarriage. and bearing against the rear edge of a strand being wound onsaid shaft and operating as the rear end of the strand leaves saidtensioning device to move said end of the strand out of the helical pathon and cover the rear end of the first-mentioned V strand.

RALPH OPPE'NHEIMv REFERENCES CITED The following references are file ofthis patent:

UNITED STATES PATENTS Name Date Hutchins Oct. 22, 1895 of record in theNumber

